Consider the Output Feedback $($OFB$)$ encryption mode. Assume that the attacker gets hold of a plaintext $($P$1)$ and a ciphertext $($ C $1),$ can he$/$she decrypt other encrypted messages if the IV $($Initial Vector$)$ is always the same? You are given the following information, please try to figure out the actual content of P $2$ based on $\backslash (\backslash$mathrm$\{$C$\}2,\backslash$mathrm$\{$P$\}1\backslash ),$ and C $1$ :

$```$

Plaintext $($P$1)$: This is a known message!

Ciphertext $($C$1)$: a$469$b$1$c$502$c$1$cab$966965$e$50425438$e$1$bb$1$b$5$f$9037$a$4$c$159$

Plaintext $($P$2)$: $($unknown to you$)$

Ciphertext. $($C$2)$: bf$73$bcd$3509299$d$566$c$35$b$5$d$450337$e$1$bb$175$f$903$fafc$159$

$```$

Hint: The following sample python code may be useful to calculate xor value:

$```$

#$!/$usr$/$bin$/$python$3$

from sys import argv

script, first, second $=$ argv

aa $=$ bytearray.fromhex$($first$)$

bb $=$ bytearray.fromhex$($second$)$

xord $=$ bytearray$($x$^$y for x$,$y in zip$($aa$,$ bb$))$

print$($xord$.$hex$())$

$```$